--- zzzz-none-000/linux-3.10.107/drivers/media/pci/mantis/mantis_dma.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/media/pci/mantis/mantis_dma.c	2021-02-04 17:41:59.000000000 +0000
@@ -130,21 +130,20 @@
 
 int mantis_dma_init(struct mantis_pci *mantis)
 {
-	int err = 0;
+	int err;
 
 	dprintk(MANTIS_DEBUG, 1, "Mantis DMA init");
-	if (mantis_alloc_buffers(mantis) < 0) {
+	err = mantis_alloc_buffers(mantis);
+	if (err < 0) {
 		dprintk(MANTIS_ERROR, 1, "Error allocating DMA buffer");
 
 		/* Stop RISC Engine */
 		mmwrite(0, MANTIS_DMA_CTL);
 
-		goto err;
+		return err;
 	}
 
 	return 0;
-err:
-	return err;
 }
 EXPORT_SYMBOL_GPL(mantis_dma_init);
 
@@ -190,7 +189,7 @@
 	mmwrite(0, MANTIS_DMA_CTL);
 	mantis->last_block = mantis->busy_block = 0;
 
-	mmwrite(mmread(MANTIS_INT_MASK) | MANTIS_INT_RISCI, MANTIS_INT_MASK);
+	mantis_unmask_ints(mantis, MANTIS_INT_RISCI);
 
 	mmwrite(MANTIS_FIFO_EN | MANTIS_DCAP_EN
 			       | MANTIS_RISC_EN, MANTIS_DMA_CTL);
@@ -209,8 +208,7 @@
 
 	mmwrite(mmread(MANTIS_INT_STAT), MANTIS_INT_STAT);
 
-	mmwrite(mmread(MANTIS_INT_MASK) & ~(MANTIS_INT_RISCI |
-					    MANTIS_INT_RISCEN), MANTIS_INT_MASK);
+	mantis_mask_ints(mantis, MANTIS_INT_RISCI | MANTIS_INT_RISCEN);
 }